Event between (145453) 05RR43 and star GA1020:00517951 with event index number of 1025220
Geocentric closest approach at 2020/12/11 00:59:34 UTC
J2000 position of star is 04:39:55.3 +13:44:57
Equinox of date position of star is 04:41:06.1 +13:47:19
Stellar brightness G=15.0,
use SENSEUP=128
Star is 139 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=20.0
TNO is 39.9 AU from the Sun
and 38.9 AU from the Earth.
The TNO is moving 25.7
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 60 seconds.
The 1-sigma cross-track error in the shadow position is
1482 km.
The TNO has an absolute magnitude Hv=4.0
Diameter=955.0 km assuming a 5% albedo -- 37.1 sec chord
Diameter=389.9 km assuming a 30% albedo -- 15.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 145453, (2020/12/11 01:00UT) Object RA Dec mag sep mel Aldebaran 04:37:07.5 +16:32:59 0.8 2.92 140 Bellatrix 05:26:15.3 +06:22:01 1.6 13.36 128 90 Tau 04:39:19.9 +12:33:05 4.3 1.31 140 PPM 120102 04:40:08.5 +14:08:44 8.3 0.43 139 PPM 120120 04:40:50.2 +13:42:38 9.5 0.10 139 145453 04:41:06.1 +13:47:19 15.0 139 Positions are for equinox of date
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 145453, (2020/12/11 01:00UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 2.92 140 Bellatrix 05:25:07.8 +06:20:58 1.6 13.36 128 90 Tau 04:38:09.6 +12:30:39 4.3 1.31 140 PPM 120102 04:38:57.4 +14:06:20 8.3 0.43 139 PPM 120120 04:39:39.4 +13:40:15 9.5 0.10 139 145453 04:39:55.3 +13:44:57 15.0 139 Positions are for J2000
Event circumstances last updated at 2020/12/02 11:36:09 UT
Marc W. Buie, Southwest Research Institute